Materials Literature
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The thermally evaporated amorphous Sb40Se20S40 thin film of 800 nm thickness was subjected to light exposure for photo induced studies. The as-prepared and illuminated thin films were studied by X-ray diffraction, Fourier Transform Infrared Spectroscopy and X-ray Photoelectron Spectroscopy. The optical band gap was re…
A cavity-resonator-integrated guided-mode resonance filter (CRIGF) can provide high-efficiency narrowband reflection with a small aperture. Polarization-independent reflection was experimentally demonstrated by crossed integration of two CRIGFs with 10 μm aperture for the first time.
Single crystals of nonlinear optical (NLO) L-alanine Sodium Nitrate (LASN) were grown by slow evaporation method. The grown crystals were irradiated by 100 MeV oxygen ions with the cumulative doses of 1Mrad, 6 Mrad and 10 Mrad. The dielectric properties, differential scanning calorimetry (DSC) and second harmonic gene…
Plasma synthesis is a novel technique of synthesis of nanomaterials as they provide high rate of production and promote metastable reactions. Very thin walled silicon nanotubes were synthesized in a DC direct arc thermal plasma reactor. The effect of parameters of synthesis i.e. arc current and presence of hydrogen on…
An analytical method is proposed for the design of all-dielectric metamaterials at optical frequencies. It is applied to the design of broadband weakly-open in-plane light trajectories like logarithmic spirals in the silicon on insulator photonics technology which could be hardly described by the use of coordinate tra…
A simple go/no-go test for body armor panels using pressure-sensitive, dye-indicator film (PSF) has been shown to be statistically effective in revealing subcritical damage to body armor panels. Previous measurements have shown that static indicator levels are accurately reproduced in dynamic loading events. Further i…
A one-step introduction of functional defects into a photonic crystal (PC) is demonstrated. By using a multi-beam phase-controlled holographic lithography and a diffracting optical element, large area one dimensional (1D) and two dimensional (2D) PCs with periodic defects was fabricated. The uniform area is up to 4 mm…
By applying non-equilibrium Green's functions in combination with density functional theory, we investigate the transport behaviours of single wall nanotubes based on group14 elements. The transmission spectrum and density of states for single wall nanotubes such as Lead nanotube(PbNT), Germanium nanotube(GeNT), Silic…
Though poly(ethyleneteraphthalate)(PET) fabrics have high initial modulus, outstanding creasability and wash-well character, but its hydrophilicity and biocompatibility are very poor. In this paper, the PET fabric was encased sucrose ester at high pressure and high temperature to endue it enough hydroxyl to grafting p…
It has been found that the nano-ridge plasmon modes are quasi-TEM modes. The quasi-TEM mode profiles reveal that the propagation of free electron oscillation on the top of the metal nano-ridges contributes to the tightly confined plasmon ridge mode.
WC/Co; Composite coating; Plasma spraying; Friction and wear Abstract: WC- Co composite powders were synthesized by direct mechanical grinding in a rotary-vibration mill under 8h, and then analyzed by SEM and XRD. WC and WC/Co composite coatings were prepared by supersonic plasma spraying fine WC-Co composite powders.…
Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text C. Ronda, "Development of Solid State Lighting Technologies," in Asia Communications and Photonics Conference, OSA Technical Digest (online) (Optica Publishing…
In this study, we explored a coplanar barrier discharge apparatus for material modification. The apparatus is introduced and several ways are proposed for fabricating the apparatus. The parameters are optimized and proposed experimentally. The results show the electrode distance and the dielectric layer thickness are…
Thermomechanical pulping (TMP) is a highly energy intensive process where most of the energy is used in therefining of chips to fibres. Various ways of reducing the energy consumption have earlier been studied, for examplechange of refiner pattern, addition of various chemicals, and also some biochemical implementatio…
Using Z scans employing 4.1-ns and 21-ps pulses, values of 4.0×10−17 cm2 and 4.2×10−17 cm2 were obtained for the singlet and triplet excited-state absorption cross sections of 4′-[2-(7-benzothiazolyl-9,9-diethylfluoren-2-yl)ethynyl]-2,2′:6′,2″-terpyridyl platinum(II) chloride at 532 nm.
A model of attenuation of residual strength with number of cycles has been founded .In this model the constant confined stress and maximum stress of fatigue loading are both considered. Based on the data of experiment, the coefficients of the model are determined. The model can be used to predict the residual life of…
CMC-CS microcapsules with CMC gel core and CS coating memberance were prepared by high voltage electricstatic spray technique, comprehensively analysing particle size and its distribution, the voltage U = 9 kV, needle-surface distance h = 20 mm, pushing speed Q = 10 mL/h were tested to be optimized process parameters.…
The fully dense composites were obtained by vacuum infiltrating boron carbide compacts (80% green density) with molten AZ91 magnesium alloy (850°C) and with the melt of a 50/50 AZ91- silicon mixture (1050°C). The densities composites were, 2.44 g/cm3 and 2.54 g/cm3, respectively. The impact response of the composites…
A reliable electromechanical memory device using aligned carbon nanotube (CNT) arrays as contact material has been developed. The aligned CNT arrays were integrated by chemical vapor deposition (CVD) on microstructures making mechanical contact. The contact showed hysteretic pull-out and - in behaviors which enabled o…
We demonstrated deep subwavelength focusing using hyperbolic metamaterial. The numerical simulations and preliminary experimental results verified that hyperbolic metamaterial can focus a broad collimated beam to spot size of ~ λ0/6 using wired media design with a plasma frequency of 34.58 GHz. Focusing is achieved fo…